Flora of North America species comparison

branches yellow-brown, gray-brown, or yellowish, not glaucous, glabrous or puberulent;

branchlets yellow-brown or yellowish (sometimes color obscured by hairs), glabrous, densely to sparsely villous, velvety, or puberulent.

trailing;

branches red-brown or yellow-brown, glabrous;

branchlets red-brown, glabrous.

stipules (not adnate to petioles), rudimentary or absent on early ones, (late ones sometimes brownish, linear, 5.4–10.4 mm), apex acuminate;

petiole shallowly grooved adaxially, 4–13 mm, villous, puberulent, or velvety adaxially;

largest medial blade linear, lorate, narrowly oblong, or narrowly elliptic, 53–130 × 5–33 mm, base cuneate, margins strongly revolute, sinuate or apparently entire, (glands epilaminal), apex acuminate, acute, or convex, abaxial surface apparently glaucous (obscured by hairs), densely short-silky, woolly, or tomentose, (midribs prominent, yellowish, and hairy), hairs appressed, spreading or erect, straight or wavy, adaxial dull or slightly glossy, sparsely or moderately densely pubescent, hairs gray;

proximal blade margins entire;

juvenile blade yellowish green, very densely tomentose or short-silky abaxially, hairs white.

(prominently marcescent, becoming skeletonized);

stipules absent or rudimentary;

petiole (deeply grooved or convex to flat adaxially), 1.2–3.2(–4.8) mm, (sparsely pubescent adaxially);

largest medial blade amphistomatous, (2 pairs secondary veins arising at or close to base, arcing toward apex), elliptic, broadly elliptic, obovate, subcircular, or circular, 7–15 × 3–11 mm, 1.1–2.5(–3.5) times as long as wide, base convex or cuneate, margins flat, entire, sometimes ciliate, apex convex, rounded, or retuse, abaxial surface not glaucous, glabrous, midrib sometimes pilose, hairs long, straight, wavy, or crinkled, adaxial highly glossy, glabrous;

proximal blade margins entire;

juvenile blade (green), glabrous abaxially or ciliate.

adaxial nectary narrowly oblong or oblong, 0.6–1.5 mm;

filaments distinct;

anthers purple turning yellow, ellipsoid to shortly cylindrical, 0.6–0.8 mm.

abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.4–1.1 mm;

filaments distinct or connate less than 1/2 their lengths, glabrous;

anthers ellipsoid or obovoid, 0.3–0.5 mm.

adaxial nectary narrowly oblong or oblong, 0.9–1.4 mm;

ovary pyriform, beak gradually tapering to styles;

ovules 12–18 per ovary;

styles 0.6–1.8 mm.

abaxial nectary absent, adaxial nectary oblong or narrowly oblong, 0.4–1.6 mm, shorter than or equal to stipe;

stipe 0.4–1.4 mm;

ovary pyriform, sparsely to moderately densely short-silky or villous, at least on beaks, hairs ribbonlike, beak slightly bulged below styles;

ovules 12 per ovary;

styles connate or slightly distinct distally, 0.3–1 mm;

stigmas flat, abaxially non-papillate with rounded tip, or slenderly to broadly cylindrical, 0.16–0.34–0.52 mm.

4–6 mm.

2.9–4.8 mm.

flowering just before or as leaves emerge; staminate stout, 24–48 mm, flowering branchlet 0–2 mm; pistillate densely flowered, 23–55 mm, flowering branchlet 0–6 mm;

floral bract brown or tawny, 1.6–2.2 mm, apex convex or rounded, abaxially hairy, hairs straight.

staminate 10–35 × 6–10 mm, flowering branchlet 1–11 mm; pistillate moderately densely flowered, stout or subglobose, 12–38 × 5–11 mm, flowering branchlet 3–14 mm;

floral bract brown, black, or bicolor, 1–1.3 mm, apex rounded, entire, abaxially sparsely hairy, hairs straight or wavy.

= 38.

= 38.